The results of studies to assess the accuracy of determining the area of land in different ways.
Possibility of the use of GPS-observations with the partly closed horizon is investigated. Accuracy of baseline vector determination in dependence of elevation mask and period of satellite observations is analyzed.
The aim. The aim of the work is the research of the possibilities of using the real time in geodetic satellite measurements, the support system of Ground-Based Augmentation System (GBAS) type [Prasad and Ruggieri 2005, Rife and Phelts 2009, Dawidowicz and Krzan 2014]. The paper analyzes the results and evaluates the actual accuracy of the real field measurements, depending on the selected solution.